Type-writing machine.



PATENTED SEPT. 1.0, 1907..

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g NM /H 9.5 mm mm m c. GABRIELSON. TYPE WRITING MACHINE. APPLICATION FILED APR 28 1904 No 865,694. l PAT-ENTED SEPT. 10. 1907. 0. GKBRIELSVON. TYPE WRITING MACHINE.

APPLIOATION FILED APR.28.1904.

2 SHEETS-SHBET 2.

wi/w am fiw "UNITED srn rss flil hlltJE.

EARL GABRIELSON,.OF SYRACUSE; NEW YORK, ASSIHNOR 'ii) L. O. tsllllll AND BROS. 'IYlli- WRITER, COMPANY, OF SYRAC TYPE JVRITING TEACI'LZNE E70. 88.1,fi94. Specification of Letters Patent. Patented Sept. 10, 2.967.

Application filed r'l'oril 28, 1904. Serial No. 206,306,

To all whom it may concern:

Be it known that I, CARL GABRIELSON, a citizen of the United States, residing at Syracuse, Onondaga. county, State of New York, have invented certain. new and useful Improvements in Typo-\Vriting Mncnines, of which the following is a specification.

This invention comprises improvements in the paper feeding mechanism of typewriting machines, the details of which will be described in the following specifiCiL ElOD, in connection with the accompanying drawings, in which the improvements are shown as applied to e. "J'ront strike machine.

In the drawing, Figure 1 is a top plan View of ports of a typewriting machine, including the carriage and platen, with my improvements applied thereto; Fig. 2 isle-right end view of the same, the knob for turning the platen being removed; Fig. 3 is a side view of the paper feeding devices and the typo-guide, the platen being shown in outline; Fig. 4 is a. front view of one of the fingers for holding the paper against the front of the platen end for indicating the printing line upon the paper; Fig. 5 is a detail sectional view on the line A-.1"1 of Fig. 1 showing the means ioi moving the moi "u din rollers out of en a ement with the P l o c O platen; 5 is a. similar yiew on the line Bli of Fig. 1, showing the clamp ior holding the tension r d;

justing sleeveysnd Fig. 7 is a detail of port of Fig. l, 'with the platen omitted.

Referring to the drawing, a indicates the carriage; the ironic of which compris'es a hook our 1 and and bars 2 and 3 projecting forwardly there om. The platen l is mounted upon the shaft 5 which journnled in the ends of the Ctll'llfif'fl, and the carriage travels transversely of the machine frame 5 uphn ball bearings 6. The paper is conducted beneath the platen by s series of rollers 7 jonmalod upon a shnft 8 in the rear of the platen and a series of rollers 9 jon rnsled upon a shaft 10 in front and below the platen. The shafts 8 and id are journaled inrockors 11 which are pivoted on arms 13 which are sdjustsllly secured to s rock shaft 14. The rollers on shafts 8 and 10 are spar-ed snitulllc distonces sport by sleeves l2 upon the shafts. The shafts and rockers form a. frame or cradle which is carried by the shaft 14. As shown, the arms 13 sro'connectcd to the roglors ll oy pivot pins 15, which uses through the l rockers '11, end a curved sheet metal guide 16 for the pa-per is plvoifsllysupported on said pins by intermediate tongues secured to the lower side of the guide and iournnled upon said pivot pins. The forwa'ird 0nd of this apron is normally pressed lightly against the forward side of the platen by springs 16 secured to the rockers 11 and. bearing against the under side of the 'epron, and the rear portion of the apron hangs away from the platen to permit the paper to be readily insertod between the pleton and the :ipron, The arms 13 are provided with split hubs l3 rind clamping: screws 18 by 'IDTKQQTIS of which the nuns may be adjusted zind clumped upon the rock shaft. This rock shaft has its ends journnlod in suitable bcnrings in the carriage frame, and the paper feeding rollsare given the requisite pressure against the platen by moons of a spring 1.91 This spring is coiled around the rock shaft and has one end attached to a collar 20 (Figs. 1 and 5) secured upon the shift by 2t set screw 2] and its opposite end is secured to a sleeve 22 which its loosely upon the shaft. and is normally held against rotation by. a. split huh or clamp 23, Figs. 1 and fi. This lull) or clump, as shown, isfornicd integral with the carriage frame and the shaft and sleeve extend through it, the latter being. adjustahly secured by means of the clamping screw 24. The pressure of the various feed rollers upon the platen may be equalized by adjnsting the arms 13 upon the rock shaft, so as to nioko the pressure of the. rollers titopposite ends of the roller frame alike, and the degree of pressure of all therollers may be regulated by the adjusting sleeve 22.

In order to withdraw the feed rollers from Contact with the platen for the purpose of adjusting the paper, the collar 20 is provided with a radially projecting arm 25, (Fig. 5) having an upturned end 26, and a lover 27 is journnlcd upon a stud 28 projecting from the carriage frame above said arm The shorter arm 27 of this lover is provi l with a. roller 29 which is adapted to best upon depress the Era when the longer arm of the lover is pulled toward the operator. This'deprossin of the arm 25 causes the rocking of shaft 14 and tho withdriuvsl oi the paper feed rollerd from the platen. When the movement of love: 27 is reversed. the spring 19 returns the rollers to their positions against the platen, and normally holds the roll 29 against rt stop 26, and the lever 27 in its rcn'mard posit ion.

A plurality of paper-holding fingers 30 are pivotally couno cod to slides 3i which are adjustohly secured,

upon a bar arranged in i'rontof and below the printlug line of the platen snidbar being scoured at its ends to the ends of the carriage frame. 'lhcso slides and fingers are preferably made of sheof'rsteel and eichlido' has ovr-riurnerlflanges or clips 33 fitting around the edg s of tlie h 3... Each finger is secured to its slide 31 by Jilll llf: joint 84.

A. roller 3-5 is journelod in cars So projecting out-- wurdly from the body of each linger, and this rollcr is normally pressed against the paper by means of a spring 37 arranged at. the hinge joint. Stops 30 are provided to limit the u'lovoincntof the fingers when the platen is remm'od. Spring tongues 38 in the front of each slide 3M ozir friotiouully upon the bar 32 sud retain the fingel-s in any desired position. It will he noted from an rollers which hold it against the platen. There are projections 39 at the inner sides of ihe fingers which serve as'rminlers to indicate Lhe printing line. These indicators are desirable in wr-itingupon ruled paper. When a ruled line is brought to regisier with ihe indi colors, the machine will print on Lhe upper side of the line. The slide portion of each finger is provided with a slop piece 10 prrq'ectinr, forwardly from its lower edgev These stop pieces ere arranged to engage the typeguide support- 4! or some similar lined obstacle to preveni; ihe iingerpieees from passing in front of the printin; point. 11, is impossible, therefore, for the type to slrike the finger pieces at either end of the line.

I1. will be evident that. the mechanism described may he varied more or less without departing from i'he spirit of the invention.

Therefore, without limiting .rnyselii to the precise construction and arrangement of parts illustrated and described, I claim: 7

1. In n typewriting machine, the coinhinnrion with ihe pinion, of a paper feeding mechanism comprising 11 rock 'shaft. arms on said rock shaft, rockers pivomlly connected to said arms, roller shafts journaled in said rockers, a curved paper guide for directing the paper about the platen between the roller shnfts, said guide being carried by said rockers, and springs for pressing the guide against the platen.

senses in :1 iypewriting: machine, the eomhinni'lon with the pinion. of a paper feeding mechanism comprising a reel; shaft, 21 pair of arms ndjnsiinhly mounted on said rock shni'l, paper feed rollers carried by said arms, a spring 0 erniing on sold rock shaft to hold the rollers against the platen. an arm lixed on said rock shaft, and a lever oper 1m on said arm to rock the shaft for the purpose oi withdrawing the feed rollers from the platen.

3, in a typewritine, machine. the combination with the pinion. of :1 paper feeding mechanism eompris a bar supported on the carriage in front of the pinion; siides upon said bar. spring fingers carried by snid slides, a type ,Q'uido,

and stops on said slides cooperating with the type guide for prevenlin c the fingers from being; moved past the priming: point.

4. In n iypewritlne machine. the comhinaiion with ihe platen, oi a paper feeding mechanism comprising a bar supported on the carriage in front of the plaien, slides upon said Mr, pivoted upwardly extending fingers curried by said slides, springs erirried by the slides for forcing the fingers against the platen, and stops for sustaining the finger when the platen is removed.

a. in n i'ypewriiing machine, the combination with the platen and a bar ndjacent to the platen, of a slide on said her, a ringer hinged lo said slide, :1 spring tendim, to move The linger into engagement wii'h the platen, and a stop fixed on the linger and adopted to abut against the slide to limit the movement of the finger:

In testimony whereof I have signed my name lo ihis specification in the presence of two suhscrihing wii'nes.

CAR L GABRIELSON Witnesses C. M. STEVENS, 0. l1. PARSONS. 

